Bung xfdft gans



(No 'M odeL) G. H. PERKINS.

I BUNG FOR GAINS.

No. 355,025. Patented Dem-28, 1886;

WITNESEES; INVENTOR 7 Wag- N PETERS, Phawulhogmphar. Wuhinginn, n. c

. i UNITED YPATENT .FFICE.

Bi'NG resents.

sPEcmIcATIoN forming part ethereal-s Patent $10,355,025. d e December 1885- Applicntion filed May 17, 1386.

To all whom it may concern.-

Be it known that l, GEORGE H. PERKINS, a citizen of the United States, residing in the city and county of Philadelphia, in the State of Pennsylvania, have invented an Improwe ment in Bung-s for Cans, of which the follow;

leum in cans of the foregoing character it has been a desidcratum to avo'id'the employment of solder for sealing or securing the bung or cap employed to close the bung-holeor orifice through which the oil is pburcd into the can,

the employment of the heated soldering-iron being dangerous.

tum to provide a hung which could be secured entirely from the outside of the can, and-without the use of dies or tools requiring to he inscrted within the can, and after the latter has been tilled.

The object of my invention is the provision of means for tightly closing and. sealing the orifice or bung-hole of a can without the employment of solder or other scaling material requiring heat in its application, and without g the introduction of dies 'or other tools within cific reference is hereinafter niatlcl .shown in placc,bnt not secured, while in the interior of a previously-tilled can. This object I attain in a manner hereinafter set forth, the particular'subjectmatter which I claim as novel being hereinafter definite y In theaccompanying drawings, which f rm a part of this specification, Figure 1 represents in side elevation, partially sectional, a quadrangular petroleum-canof the character usually employed for the transportation of crude;

petroleum. Figs. 2, 3, 4, 5, 6, and. 7 are fagmentary central sectional details, to which speand 9 are similar views of a can the bunghole of which is formed without a circumscribing bead or channel, in Fig. 8 the bungbeing 9 it is shown secured.

$imilar letters of reference indicate corresponding parts.

it has also been a desidera" Figs. 8

Serial K0. 5202.413. (X0 model.)

nelor head, a, the convexity of which faces tlieinterior of the can, and the inner member. of which is an upwardly-angled lip, a"..

B, Fig. 2, is a cup-shaped cap or bung, which is struck up' byilics or otherwise conveniently formed from sheet-lead or other inelastic, pliant, flexible, or extensible sheet metal. The cap as originally struck is formed with sides or walls I), of a predctern-iined depth, preferably corrcspoinlent with the breadth of thelip a of the head of the bung-hole, and with a circumferentially-extending outwardly-projectingfiange, b". The exterior. diameter of thefcap or bung is such as to adapt it-to be fitted-snugly into -lhe bung-hole, as shown in Fig. 4.

The can having been tilled and the bung-so as above. formed dropped into the bung-hole, after the manner represented in'Fig.;t, the flange of the cap bent over into the channel or bead surrounding the bung-hole so as to lie fiat against the upper-surface of the lip, andthewall oi the bung is fo'rccd circumferennnd rest closely in contact with the under surface of the lip, so that the latter is upon both of its faces or surfaces embraced by the metal of thebung, which l OI'lllSll. circumferential fold en'ibracing it, as clearly represented in Figs. 6 and .7. This manipulation of the metal of the ably eifectuated by a tool which I and George E. Transom, ot Philadelphia, have jointly def vised,'and which forum the subject-matter of an. .application for patent filed May 17 1886, as Serial No. 202,398. I

\Vhere absolute hernietical tightness is desirable, a packing composed of any suitable material, but preferably of equal parts of common glue and sugar,or of sugar and glycerine, or of g1 ycerineand glue, may, as shown in Fig.5, he, in a plastic or liquid condition, appliedto the channel or the upper surface of its lip before or after the bung is introduced, so that when. the flange oi the bung is crimped over the lip the said prckingshall make an oiltially outward, so as to draw up or take the. bulge out of the convex bottom 01' the bung or oval in outlineand circumscribed bya chanbung may beaccom-plishedby any means well known to sheet-metal workers, but is prefer- 1-5 9, and in secnring it lho v being slightly angled up, asshown. :It; is also tight joint between {heir-facing surfaces. Other materials may be employed to formalize packing or cement, it being, however, essential that; they should 110i; besoluble, in petio- 5 ion 01 its products." TUQiN-Hlthfi can the bun is removed lily-being oulal rough or by being drawn our, which its malleable ch arac-- ter permitsiy, v The foregoing"oonsljl hoiioh of M16 can with '10 a bead surrounding" its bung-hole is that to which I prefer toiesort.

' ever, tl1,"il\. j;l1e' bung-hole may, as shown lil Fig. 8, have a'flat lip 02 odgeahd no bead, the

bung beingradn-plied to b'evsecured as in Fig.

obvious that the, bottom of the-burig grinst'eed of being slightly convex, may be fiat, ll: being "however, more economical and better tofinoko as represented 'and --'de- 20 it; slightly convex,

- soribed. v v Having thus described myinvenlion, I elzii m and desire 'to secure by LeltersPutent 1. As'an article of manufa-olgure, a.v sheetmetal ion having a cup-shaped sheetqnetal bung provided with an onbwardly-projeoeing" edgeflauge, whioh'io bentdown'upen tho'llp of the can bung-hole, and also provided with side walls which, are extended outwardly be o neat h the bung-holelip insuch manner that the latter is tighbly embraced by rising-lofold of the metal of the him siibstentinllyz s some 2; As a n article of 1minufaclsuro, e'asheelf- 5 met-a1 can havinga cup-shaped slieet h etal' an ontwardly-proie'ebing;'

bung provided with It is manifest-{how edge of the bung-holowar'dly beneath sa'id edge flange which is bent; down upon tholip of the can bung-hole, and also provided with side walls which are extended outwardly beneath the bung'hole-lip in such manner thgb 0 the latter is tightly embracedhy asingle fold of the metelof the bling, and also having a, packinggor sealing material;, ;intrposed' between the bun'g flange and' the'lip or edge of the bunghole, sobsbanlially os shovgo and described. Y J 3; hson ariicle'o 'mmil1facture, a sheet mecal can li ivinga bung-hole or orifice formed, with a ciz'cu'msoriblh'g; bead or'ohannel having an upwaidly-inclipedllpor dg aqd also hav. im; aenpshapedsheeoojefal-buhg proyided with" an outwardly -'.'proj ecting edge flange,-

which latter is'bejnt downnp'ohthe' upwardly" inolin'ed lip of the bqhgeliole,andplsb pro videdflw ii h side'wgllswghich; are extended outinclined lip or edge and,

parallel therewith" in such manner that; the' j lip is tightly embraced by asin'gle fold of-the metal-of the lin ng, substontla aslshoimaud' described; I 1 4". A's 'zurartiolo'of mahu'faoli e,;a sheebw,

. ny namo iliis lllfdeiy'of'llfgy; 13.1886; 7 V

It is hereby certified that in Letters Patent No. 355,025, granted December 28, 1886,, upon the application of George H. Perkins, of Philadelphia, Pennsylvania, for an improvement in Bungs for Cans, errors appear in the printed specification requiring correction as follows: On page 2, line 25, a commashould be inserted after the word can, on line 27 the comma after the word flange should be stricken out; in line 35 acomma should be inserted after the word-cztn, and in line 48 a comma should be inserted after the word cam and that the Letters Patent should he read with these corrections therein that the same may conform to the record of the case in the Patent gOftice. I Signed, countersigned, and sealed this 11th day of January, A. D. 1887.

[SEAL] D. L. HAWKINS, Acting Secretary of the Interior- (Joun tersigned:

R. B. VANCE,

Acting Commissioner of Patents.

Corrections in Letters Patent No. 355,025. 

